Situation awareness, or SA, is the perception of environmental elements within a volume of time and space, the comprehension of their meaning, and the projection of their status in the near future.

So imagine this is you...

You are on the bus when you suddenly realize... you need to fart real badly...

The music is really loud, so you time your farts with the beat.

After a couple of songs, you start to feel better as you approach your stop.

As you are leaving the bus, people are really staring you down, & that's when
you realize you have been listening to your iPod.

SITUATIONAL AWARENESS Gone Wrong